40243032 has 24 divisors (see below), whose sum is σ = 108991740. Its totient is φ = 13414320.

The previous prime is 40243019. The next prime is 40243033. The reversal of 40243032 is 23034204.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 40242996 and 40243014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40243033) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 279394 + ... + 279537.

Almost surely, 2^40243032 is an apocalyptic number.

It is an amenable number.

40243032 is an abundant number, since it is smaller than the sum of its proper divisors (68748708).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40243032 is a wasteful number, since it uses less digits than its factorization.

40243032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558943 (or 558936 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 40243032 is about 6343.7395911245. The cubic root of 40243032 is about 342.6864227449.

Adding to 40243032 its reverse (23034204), we get a palindrome (63277236).

It can be divided in two parts, 4024 and 3032, that added together give a square (7056 = 84²).

The spelling of 40243032 in words is "forty million, two hundred forty-three thousand, thirty-two".